The cheapest times to fly from DUB to STL are

  • January 8th to February 4th (except the week of January 22nd)
  • March 19th to June 10th
  • August 27th to November 11th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DUB to STL is mid October. Prices can be as high as $1344 for Friday flights during early to mid July, or as low as $427 for Tuesday flights around mid October.


When to Fly to St. Louis

Flying from Dublin (DUB) to St. Louis, MO (STL) will usually cost between $447 to $1267 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid October with an average ticket price of $467. Due to high demand the most expensive time to fly is early to mid July, with an average price of $1295. Planning your trip to low-cost times can easily save you $828 on economy flights and even more on first-class flights. Generally, any price below $663 can be considered a good price for a round-trip DUB to STL flight.

See below for a graph of average weekly prices for the DUB to STL route. All prices are for round-trip tickets in USD.

DUB to STL Flight Prices

Compared to other flights, the DUB to STL flight is cheaper than the average and costs about as much as the average flight leaving from Dublin. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly to St. Louis, and Saturdays are the most expensive days to return to Dublin. Selecting flights on the least expensive days could save you up to $85 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $677. Return trip prices are from the STL to DUB flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from DUB to STL can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 8 hour 1 minutes may not be realistic.


Flight Hacking DUB to STL

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from DUB to STL — but Champion Traveler does!

Hack #1: Chicago, IL (DUB > ORD > STL)

  • Price for both tickets: $606
  • Average savings: $57 (8.6%)

See DUB to BOS flights

Hack #2: Boston, MA (DUB > BOS > STL)

  • Price for both tickets: $643
  • Average savings: $20 (3.02%)

See DUB to ORD flights

Hack #3: Newark, NJ (DUB > EWR > STL)

  • Price for both tickets: $647
  • Average savings: $17 (2.49%)

See DUB to EWR flights


Flight Questions Answered

Still have questions about flying from DUB to STL? We’ve got answers.

Which airlines fly this route?

You can find 19 major airlines flying this route most often: Aer Lingus, Air Canada, Air France, Alaska, American, Austrian, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, SAS, SWISS, Tap Air Portugal, Turkish Airlines, United, WestJet, and potentially more during busy seasons.

How far away is it from St Louis Lambert International Airport to Dublin Airport?

The distance between the two airports is roughly 3910 miles or 6293 kilometers.

How long does it take to fly from DUB to STL?

The real-world flight time for a nonstop DUB to STL flight is about 8 hour 1 minutes.

How many flights go between Dublin and St. Louis, MO?

It depends on the day of the week and the date, but a typical day might have around 65 available flights from DUB to STL.


Airport Location Info


Departing Airport

Origination codeDUB
Origination airport nameDublin Airport

Return Airport

Destination codeSTL
Destination airport nameSt Louis Lambert International Airport
CitySt. Louis, MO
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.